6
clean(adjective, clean)
6
pedantic(adjective, character, behavior, pedant)
6
perfectionist(adjective, careful, thorough, scrupulous)
6
prissy(adjective, particular, fussy, demure, strait-laced)
6
selective(adjective, sharp, refined, critical, discerning)
6
sensitive(sharp, exact, superior, sophisticated, refined)
5
cautious(adjective, delicate, careful, suspicious, wary)
5
censorious(disapprobation, fastidiousness)
5
cultivated(adjective, sharp, delicate, superior, sophisticated)
5
diligent(adjective, precise, thorough, meticulous, vigilant)
5
elegant(adjective, smart, superior, regular, sophisticated)
5
immaculate(adjective, clean)
5
methodical
5
mincing(adjective, fussy)
5
minute(precise, honorable, reliable, tidy, nice)
5
orderly(adjective, clean)
5
precious(adjective, delicate, proper, superb, wonderful)
5
priggish(adjective, precise, thorough, meticulous)
5
proper
5
spotless(adjective, clean)
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APASmart Define. (2016). fastidious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fastidious/thesaurus/synonyms
ChicagoSmart Define. 2016. "fastidious thesaurus" https://smartdefine.org/fastidious/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, fastidious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fastidious/thesaurus/synonyms>.
MLASmart Define. "fastidious thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/fastidious/thesaurus/synonyms>